Author | Michael Walczyk
Adapted by | Matthew Ragan
Light Volumnes is a simple shader intended to help create the illusion of faux lighing volumns, similar to what you'd see in haze. This implimentation is a 2D post process effect achieved in a shader. Controls for this tox are exposed as Custom Parameters.
| Parameter | Description and Function |
|---|---|
| Volume Color | The color image to be used for generating the faux volume |
| Scene | This represents your rendered scene. This could be created using only TOPs, or it could be a 3D rendered scene |
| Light Source | This should be an image where the light sources are represeted as all white textures. |
| Parameter | Description and Function |
|---|---|
| Light Position | The UV position of your light source in UV space. |
| Decay | The roll-off of the light over distance. |
| Weight | The strength / brigntess of lighting accumulation |
| Density | The accumulation range and direction. Positive values come "towards" the viewport, negative values move away |
| Exposure | Exposure control before output - a brightness dial. |
| Samples | The number of steps in the ray-marching process. |